Предлагаю взглянуть на тестконтейнеры (https://www.testcontainers.org/)
Он предоставляет очень удобный способ запуска и чистого демонтажа док-контейнеров в тестах JUnit. Эта функция очень полезна для тестирования интеграции приложений с реальными базами данных и любыми другими ресурсами (например, Axon Server), для которых доступен образ докера (https://hub.docker.com/r/axoniq/axonserver/).
).
Я делюсь некоторыми фрагментами кода из тестового класса JUnit 4 (Kotlin). Надеемся, что это может помочь вам начать и развивать свою конкретную стратегию тестирования (интеграция должна охватывать меньшую область, чем сквозные тесты). Мое мнение таково, что интеграционные тесты должны быть направлены на компоненты API обмена сообщениями Axon и REST API по отдельности / независимо. Сквозное соединение должно охватывать все компоненты в вашем микросервисе / ах.
@RunWith(SpringRunner::class)
@SpringBootTest
@ContextConfiguration(initializers = [DrestaurantCourierCommandMicroServiceIT.Initializer::class])
internal class DrestaurantCourierCommandMicroServiceIT {
@Autowired
lateinit var eventStore: EventStore
@Autowired
lateinit var commandGateway: CommandGateway
companion object {
// An Axon Server container
@ClassRule
@JvmField
var axonServerTestContainer = KGenericContainer(
"axoniq/axonserver")
.withExposedPorts(8024, 8124)
.waitingFor(Wait.forHttp("/actuator/info").forPort(8024))
.withStartupTimeout(Duration.of(60L, ChronoUnit.SECONDS))
// A PostgreSQL container is being started up using a JUnit Class Rule which gets triggered before any of the tests are run:
@ClassRule
@JvmField
var postgreSQLContainer = KPostgreSQLContainer(
"postgres:latest")
.withDatabaseName("drestaurant")
.withUsername("demouser")
.withPassword("thepassword")
.withStartupTimeout(Duration.of(60L, ChronoUnit.SECONDS))
}
// Pass details on the application as properties BEFORE Spring starts creating a test context for the test to run in:
class Initializer : ApplicationContextInitializer<ConfigurableApplicationContext> {
override fun initialize(configurableApplicationContext: ConfigurableApplicationContext) {
val values = TestPropertyValues.of(
"spring.datasource.url=" + postgreSQLContainer.jdbcUrl,
"spring.datasource.username=" + postgreSQLContainer.username,
"spring.datasource.password=" + postgreSQLContainer.password,
"spring.jpa.properties.hibernate.dialect=org.hibernate.dialect.PostgreSQLDialect",
"axon.axonserver.servers=" + axonServerTestContainer.containerIpAddress + ":" + axonServerTestContainer.getMappedPort(8124)
)
values.applyTo(configurableApplicationContext)
}
}
@Test
fun `restaurant command microservice integration test - happy scenario`() {
val who = "johndoe"
val auditEntry = AuditEntry(who, Calendar.getInstance().time)
val maxNumberOfActiveOrders = 5
val name = PersonName("Ivan", "Dugalic")
val orderId = CourierOrderId("orderId")
// ******* Sending the `createCourierCommand` ***********
val createCourierCommand = CreateCourierCommand(name, maxNumberOfActiveOrders, auditEntry)
commandGateway.sendAndWait<Any>(createCourierCommand)
await withPollInterval org.awaitility.Duration.ONE_SECOND atMost org.awaitility.Duration.FIVE_SECONDS untilAsserted {
val latestCourierCreatedEvent = eventStore.readEvents(createCourierCommand.targetAggregateIdentifier.identifier).asStream().toList().last().payload as CourierCreatedEvent
assertThat(latestCourierCreatedEvent.name).isEqualTo(createCourierCommand.name)
assertThat(latestCourierCreatedEvent.auditEntry.who).isEqualTo(createCourierCommand.auditEntry.who)
assertThat(latestCourierCreatedEvent.maxNumberOfActiveOrders).isEqualTo(createCourierCommand.maxNumberOfActiveOrders)
}
// ******* Sending the `createCourierOrderCommand` **********
val createCourierOrderCommand = CreateCourierOrderCommand(orderId, auditEntry)
commandGateway.sendAndWait<Any>(createCourierOrderCommand)
await withPollInterval org.awaitility.Duration.ONE_SECOND atMost org.awaitility.Duration.FIVE_SECONDS untilAsserted {
val latestCourierOrderCreatedEvent = eventStore.readEvents(createCourierOrderCommand.targetAggregateIdentifier.identifier).asStream().toList().last().payload as CourierOrderCreatedEvent
assertThat(latestCourierOrderCreatedEvent.aggregateIdentifier.identifier).isEqualTo(createCourierOrderCommand.targetAggregateIdentifier.identifier)
assertThat(latestCourierOrderCreatedEvent.auditEntry.who).isEqualTo(createCourierOrderCommand.auditEntry.who)
}
// ******* Assign the courier order to courier **********
val assignCourierOrderToCourierCommand = AssignCourierOrderToCourierCommand(orderId, createCourierCommand.targetAggregateIdentifier, auditEntry)
commandGateway.sendAndWait<Any>(assignCourierOrderToCourierCommand)
await withPollInterval org.awaitility.Duration.ONE_SECOND atMost org.awaitility.Duration.FIVE_SECONDS untilAsserted {
val latestCourierOrderAssignedEvent = eventStore.readEvents(assignCourierOrderToCourierCommand.targetAggregateIdentifier.identifier).asStream().toList().last().payload as CourierOrderAssignedEvent
assertThat(latestCourierOrderAssignedEvent.aggregateIdentifier.identifier).isEqualTo(assignCourierOrderToCourierCommand.targetAggregateIdentifier.identifier)
assertThat(latestCourierOrderAssignedEvent.auditEntry.who).isEqualTo(assignCourierOrderToCourierCommand.auditEntry.who)
assertThat(latestCourierOrderAssignedEvent.courierId.identifier).isEqualTo(assignCourierOrderToCourierCommand.courierId.identifier)
}
}
}
class KGenericContainer(imageName: String) : GenericContainer<KGenericContainer>(imageName)
class KPostgreSQLContainer(imageName: String) : PostgreSQLContainer<KPostgreSQLContainer>(imageName)